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A154081 Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 10. 0
2772, 12494, 23493, 40947, 41096, 46487, 43627, 32038, 17016, 8815, 3707, 2835, 1541, 2032, 1008, 876, 876, 832, 788, 744, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696 (list; graph; refs; listen; history; internal format)
OFFSET

5,1

COMMENTS

Value 696 starts at n=25 and continues through at least n=52.

CROSSREFS

Sequence in context: A205418 A046332 A046380 * A099691 A188415 A206516

Adjacent sequences:  A154078 A154079 A154080 * A154082 A154083 A154084

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Jan 04 2009

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.